100% brand new and high quality An easy one step connection of wires, soldered, insulated and sealed. Fast, efficient, no crimping required. Solder and seal and with advanced waterproof function. Transparent heat shrink sleeve allows for precise visual inspection. Greater pull strength. Ideal used in electronics, railway, marine, automobile, motorcycle, aerospace and other outdoor applications. Storage in a plastic case for easy access and carry. Easy and simple to operate and use, practical and useful. Item Type: Solder Heat Shrink Sleeve Material: PE+Tin Size: as picture Color: Red, Blue, White, Yellow Package Includes:50pcs Connectors Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!